12221176220999 has 8 divisors (see below), whose sum is σ = 12551531500368. Its totient is φ = 11890823742720.

The previous prime is 12221176220993. The next prime is 12221176221019. The reversal of 12221176220999 is 99902267112221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12221176220999 - 2²⁴ = 12221159443783 is a prime.

It is a super-2 number, since 2×12221176220999² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221176220999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221176220993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10556759 + ... + 11657079.

It is an arithmetic number, because the mean of its divisors is an integer number (1568941437546).

Almost surely, 2^{12221176220999} is an apocalyptic number.

12221176220999 is a deficient number, since it is larger than the sum of its proper divisors (330355279369).

12221176220999 is a wasteful number, since it uses less digits than its factorization.

12221176220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400545.

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 12221176220999 in words is "twelve trillion, two hundred twenty-one billion, one hundred seventy-six million, two hundred twenty thousand, nine hundred ninety-nine".